Small speaker unit



FIG. 1 is a perspective view of the small speaker unit;

FIG. 2 is a rear view of the small speaker unit;

FIG. 3 is a front view of the small speaker unit;

FIG. 4 is a right side view of the small speaker unit;

FIG. 5 is a left side view of the small speaker unit;

FIG. 6 is a top side view of the small speaker unit; and,

FIG. 7 is a bottom view of the small speaker unit.

The broken lines form no part of the claimed design. 

CLAIM The ornamental design for a small speaker unit, as shown and described. 